• Title/Summary/Keyword: RFID Systems

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Development of a Care System for Older People Living Alone Using the RFID Technologies and the Living Informations (RFID 기술과 생활정보를 이용한 독거노인 케어 시스템 구축)

  • Lee, Kang-Woo;Shinn, Seong-Whan
    • Journal of the Korea Safety Management & Science
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    • v.11 no.3
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    • pp.73-78
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    • 2009
  • In this paper, we developed the care system for older people living alone using the RFID technologies and the living informations. The care system store living informations, extracted through a unconstrained detection method by the RFID tags and readers, into a monitering server. The unconstrained detection method improved a weakness of existing systems that detected a living informations through an infrared sensor, ultrasonic sensor, camera, consumed quantity of the tap water or gas. The result of this study will playa very important role, as a part of a composite older-welfare services. Also, in the future, accumulated living informations will be allowed for a health data of older peoples.

A Scheme for Guaranteeing Fair Identification Delay in Gen-2 RFID Systems

  • Lim, In-Taek
    • Journal of information and communication convergence engineering
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    • v.9 no.1
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    • pp.44-49
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    • 2011
  • In RFID System, when multiple tags respond simultaneously, a collision can occur. A method that solves this collision is referred to anti-collision algorithm. In Gen-2 RFID system, if the slot-count size varies during a query round due to the collisions, a new query round begins with a QueryAdjust command. Anti-collision algorithm of Gen-2 RFID system is simple. But, it has the tag starvation problem that a tag may never be successfully identified because its responses always collide with others. Therefore, this paper proposes a scheme to guarantee the fair identification delay. In the proposed scheme, if the slot-count value changes due to the collisions, the reader broadcasts a CollisionRound command to begin a collision round. During the collision round, the reader identifies only tags that occurred collision during the previous query round.

A Development of Web-based Inventory System using a RFID in Injection Molding Industry (RFID를 이용한 사출산업에서의 웹기반 재고관리시스템 개발)

  • Lim, Seok-Jin
    • Journal of the Korea Safety Management & Science
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    • v.12 no.3
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    • pp.177-182
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    • 2010
  • Industrial business environments have rapidly changed and face severe competitive challenges. The effective inventory system enables to product and deliver the products quickly for meeting due date of customer's order in this environment. This study have developed a web-based inventory system using RFID for an injection molding industry. The system analysis inventory problem issues such as inventory planning, warehouse assignment and assist to develop production scheduling. In this study, web-based inventory system using Java language and RFID technology is proposed and implemented. As the result of implementation of the system, we expected that it manages to inventory planning continually and systematically.

Development of Landfill Bringing Management System Based on RFID/LPR System (RFID/LPR 기반 폐기물 매립지 반입관리시스템 개발)

  • Lee, Sang-Ho;Yoon, Yeon-Joo;Cho, Sung-Yun;Kim, Kyung
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2012.07a
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    • pp.437-440
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    • 2012
  • In this paper, we developed the landfill bringing management system which can help to manage a landfill efficiently. Basically We made efforts to standardize it's system architecture but also considered it's localization to adapt An-sung Landfill's special requirements. We used RFID and LPR systems to distinguish a garbage truck from the others, and could establish more reliable landfill management system with this information.

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A Query Indexing Method for Processing Continuous Queries in RFID Middleware Systems (RFID 미들웨어에서 연속질의 처리를 위한 질의 색인 기법)

  • Seok, Su-Wook;Park, Jae-Kwan;Hong, Bong-Hee
    • Proceedings of the Korean Information Science Society Conference
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    • 2005.07b
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    • pp.28-30
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    • 2005
  • EPCglobal은 RFID와 관련된 다양한 분야의 표준화를 주도하고 있으며, 응용 표준으로써 Tag 정보의 운용을 위한 RFID 미들웨어(Savant)를 제시하였다. 특히, Savant의 RIED는 Tag 정보를 저장하고 다양한 질의 저리를 제공하는 MMDBMS이다. 그러나 RIED는 User-Driven 방식만 지원하므로 연속${\cdot}$질의를 저리하기 위해 주기적으로 질의를 수행하게 된다. 따라서 주기적인 질의 수행으로 인한 심각한 성능 저하가 발생하며, 실시간 처리를 요구하는 질의를 수행하지 못한다. 이 논문에서는 RFID 미들웨어의 질의 처리 문제를 해결하기 위하여 연속 질의에 적합한 질의 색인 구조를 제시한다. 이 색인은 질의를 색인의 데이터로, 데이터를 색인의 질의로 Swap하여 데이터에 독립적인 검색 성능을 보장한다.

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A Design of RFID based Product Lifecycle Management System (RFID 기반 상품의 효율적 라이프사이클관리를 위한 통합시스템 설계)

  • Kim, Dong-Min;Lee, Jong-Tae
    • IE interfaces
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    • v.19 no.4
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    • pp.333-341
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    • 2006
  • RFID (Radio Frequency Identification) is a technology that can input identification information to microchip and make goods, animals, persons recognized, chased, and managed using radio frequency, and is founded on the core technology of ubiquitous environment of the future. In this paper, we propose a RFID integrated system designed to manage the lifecycle of an individual product efficiently. The proposed system can enable traceability and visibility of items through their entire life by integrating distribution and banking information on the basis of EPCglobal Network. It may provide the infra of Digital Manufacturing and RTE (Real Time Enterprise) and effective information sharing structure with existing legacy system (ERP, CRM, SCM) by real time.

An Empirical Study on the Factors Affecting RFID Adoption Stage with Organizational Resources (조직의 자원을 고려한 RFID 도입단계별 영향요인에 관한 실증연구)

  • Jang, Sung-Hee;Lee, Dong-Man
    • Asia pacific journal of information systems
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    • v.19 no.3
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    • pp.125-150
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    • 2009
  • RFID(Radio Frequency IDentification) is a wireless frequency of recognition technology that can be used to recognize, trace, and identify people, things, and animals using radio frequency(RF). RFID will bring about many changes in manufacturing and distributions, among other areas. In accordance with the increasing importance of RFID techniques, great advancement has been made in RFID studies. Initially, the RFID research started as a research literature or case study. Recently, empirical research has floated on the surface for announcement. But most of the existing researches on RFID adoption have been restricted to a dichotomous measure of 'adoption vs. non-adoption' or adoption intention. In short, RFID research is still at an initial stage, mainly focusing on the research of the RFID performance, integration, and its usage has been considered dismissive. The purpose of this study is to investigate which factors are important for the RFID adoption and implementation with organizational resources. In this study, the organizational resources are classified into either finance resources or IT knowledge resources. A research model and four hypotheses are set up to identify the relationships among these variables based on the investigations of such theories as technological innovations, adoption stage, and organizational resources. In order to conduct this study, a survey was carried out from September 27, 2008 until October 23, 2008. The questionnaire was completed by 143 managers and workers from physical distribution and manufacturing companies related to the RFID in South Korea. 37 out of 180 surveys, which turned out unfit for the study, were discarded and the remaining 143(adoption stage 89, implementation stage 54) were used for the empirical study. The statistics were analyzed using Excel 2003 and SPSS 12.0. The results of the analysis are as follows. First, the adoption stage shows that perceived benefits, standardization, perceived cost savings, environmental uncertainty, and pressures from rival firms have significant effects on the intent of the RFID adoption. Further, the implementation stage shows that perceived benefits, standardization, environmental uncertainty, pressures from rival firms, inter-organizational cooperation, and inter-organizational trust have significant effects on the extent of the RFID use. In contrast, inter-organizational cooperation and inter-organizational trust did not show much impact on the intent of RFID adoption while perceived cost savings did not significantly affect the extent of RFID use. Second, in the adoption stage, financial issues had adverse effect on both inter-organizational cooperation and the intent against the RFID adoption. IT knowledge resources also had a deterring effect on both perceived cost savings and the extent of the RFID adoption. Third, in the implementation stage, finance resources had a moderate effect on environmental uncertainty and extent of RFID use while IT knowledge resources had also a moderate effect on perceived cost savings and the extent of the RFID use. Limitations and future research issues can be summarized as follows. First, it is difficult to say that the sample is large enough to be representative of the population. Second, because the sample of this study was conducted among manufacturers only, it may be limited in analyzing fully the effect on the industry as a whole. Third, in consideration of the fact that the organizational resources in the RFID study require a great deal of researches, this research may deem insufficient to fulfill the purpose that it initially set out to achieve. Future studies using performance research are, therefore, needed to help better understand the organizational level of the RFID adoption and implementation.

An Implementation of a RFID Reader Firmware for EPC Class 1 Generation 2 Specification (EPC Class 1 Generation 2 규격에 적합한 리더 펌웨어 개발)

  • Choi, Il-Ho;Bae, Sung-Woo;Jung, Myung-Sub;Jang, Byung-Jun;Kim, Jun-O;Park, Jun-Seok;Seong, Yeong-Rak;Oh, Ha-Ryoung
    • Proceedings of the IEEK Conference
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    • 2005.11a
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    • pp.1063-1066
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    • 2005
  • In this paper, we developed the UHF RFID system for EPC Class1 Generation 2 specification. The RFID is a technique of identifying an object using radio frequency transmission. UHF band RFID system communication between Reader and Tag for provide the power to tag when be active when reader’s command finished the transfer. RFID technology can be applied to the supply chain, security, logistics industry and etc. Especially, UHF RFID is worth noticing because of its relatively long identification rage and commercial UHF RFID systems are under development.

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Implementation of Multidimensional Trace System for Specific Object by RFID (RFID를 이용한 다차원 특정 객체 추적 시스템의 구현)

  • Min, So-Yeon;Jung, Yong-Hoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.12
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    • pp.3694-3701
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    • 2009
  • This paper suggests that location tracking system by RFID. It uses the location tracking and the authentication to entrance after inserts passive RFID tag into user Identification card. The readers periodically broadcast their signal, and then the readers understand where users are by analyzing them. In one of tracking systems, it is possible to detect the area where user had stayed for the longest time during moving according to signal power, to know user moved path and user next moving path. Also, it can be used in entrance authentication system in security area by using tag ID value which stored to backend server.

Self Localization of Mobile Robot Using UHF RFID Landmark

  • Kwon, Hyouk-Gil;Kim, Min-Sik;Ryu, Je-Goon;Shim, Hyeon-Min;Lee, Eung-Hyuk
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.1606-1611
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    • 2005
  • The goal of this paper is to develop a self localization of mobile robot using UHF RFID landmark. We present landmark, a location sensing archetype system that uses UHF Radio Frequency Identification (UHF RFID) technology for locating objects inside buildings. The major advantage of landmark is that it improves the overall accuracy of locating objects by utilizing the concept of reference tags. Based on experimental analysis, we demonstrate that passive UHF RFID is a viable and cost-effective candidate for indoor location sensing. We conduct a series of experiments to evaluate performance of the positioning of the landmark System. In the standard setup, we place RF Reader which has two antennas and 25 tags in our lab. This research uses the assumption-based coordinates (ABC) algorithm[3] for determining the localization of robot. Also, we show how Radio Frequency Identification (UHF RFID) can be used in robot-assisted indoor navigation for the visually impaired. The experiments illustrate that passive UHF RFID tags can act as reliable landmark that trigger local navigation behaviors to achieve global navigation objectives.

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